[PATCH 04/14] USB speedtouch: add defensive memory barriers

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Defend against future maintainers.

 speedtch.c | 2 ++
 1 files changed, 2 insertions(+)

diff -Nru a/drivers/usb/misc/speedtch.c b/drivers/usb/misc/speedtch.c
--- a/drivers/usb/misc/speedtch.c Wed May 21 00:40:14 2003
+++ b/drivers/usb/misc/speedtch.c Wed May 21 00:40:14 2003
@@ -1220,6 +1220,7 @@
 
 finish:
         /* ready for ATM callbacks */
+ wmb ();
         instance->atm_dev->dev_data = instance;
 
         usb_set_intfdata (intf, instance);
@@ -1358,6 +1359,7 @@
         for (i = 0; i < UDSL_NUM_SND_BUFS; i++)
                 kfree (instance->send_buffers [i].base);
 
+ wmb ();
         instance->usb_dev = NULL;
 
         /* ATM finalize */

-
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• Next message: Duncan Sands: "[PATCH 05/14] USB speedtouch: spin_lock_irqsave -> spin_lock_irq in process context"
• Previous message: Duncan Sands: "[PATCH 03/14] USB speedtouch: replace yield()"
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